Of those listed, my favourite are the first and especially the fourth ones (a really good read with plenty of pretty accurate and well-researched data), and the least favourite - the third one.

I've also come across this book on the Princess which you can read online: "La Vie de Madame Elisabeth, Sœur de Louis XVI" ("The Life of Madame Elisabeth, Sister of Louis XVI). I haven't read this one (although I now endeavour to) but unfortunately, it's in French as well.

This is certainly a book I'll be looking out for,its a pity that so much of the medieval quarters of Paris were pulled down having survived the horrors of the revolutions.Countless medieval churches,abbeys and chapels,many of which housed royal and noble tombs.